Helpfully, the United States Department of Energy has a map that shows the recommended R-value range for different ... in northern states should use attic insulation with R49 to R60 ratings ...

Once you find your zone on the map, you can then use the R-value insulation chart below to determine the level of insulation you will need to insulate your attic, ceiling, walls, floor ...

Your home's R-value score will guide you toward the type of insulation you need. In general, an attic's R-value should be between R-30 and R-49. In particularly cold climates, you might go up to R-60.

There are several different types of attic insulation materials ... of Energy provides a nifty map that separates regions of the US into different R-value zones, and offers additional guidance ...

But it’s pretty easy to figure out: The Department of Energy offers a handy map organized ... recommended R-value for common insulation projects. For example, an uninsulated attic should end ...

Dear Pablo: Is it more cost effective to install an attic fan or add additional insulation? When the sun shines on your roof, the dark shingles (assuming that you have a shingled roof) collect the ...

What does that mean? — Doris L., Pittsburgh A: R-value refers to the level of resistance to heat flow that insulation — from fiberglass attic insulation to pipe wrap — provides. Heat ...

Homes and buildings need insulation ... R-value - as much as 50 percent. By some estimates, 50-60% of your heat escapes through light fixtures, vents, and directly through your ceiling into the ...

while newer homes in northern Arizona generally have attic insulation at R-60 because of colder winters. Need a break? Play the USA TODAY Daily Crossword Puzzle. Those R-values measure how ...

A: Anywhere below the Mogollon Rim in Arizona, you need to reach at least the R-30 level of insulation in your attic. You can put ... The higher the R-value, the greater the insulation’s ...